2017
Biology and Control of Sclerotinia Stem Rot of Soybean
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Contributor/Checkoff:
North Central Soybean Research Program
Category:
Sustainable Production
Keywords:
Biotic stressCrop protectionField management Pest
Parent Project:
Biology and control of Sclerotinia stem rot of soybean
Lead Principal Investigator:
Mehdi Kabbage, University of Wisconsin
Co-Principal Investigators:
Daren Mueller, Iowa State University
Martin Chilvers, Michigan State University
Sydney Everhart, University of Nebraska at Lincoln
Damon Smith, University of Wisconsin
+3 More
Project Code:
NCSRP
Contributing Organization (Checkoff):
North Central Soybean Research Program
$88,650
Institution Funded:
University of Wisconsin
$88,650
Brief Project Summary:

We are in the early stages of this 3-year project that addresses important question concerning the biology and control of Sclerotinia Stem Rot (SSR) in Soybean. Our project addresses several key factors that affect SSR development and management. (i) Host resistance; by identifying and implementing novel host resistance mechanisms. (ii) Investigating factors affecting fungicide efficacy in the NC States. (iii) Developing new outreach and disease management strategies.

Unique Keywords:
#insects and pests, #soybean diseases
Information And Results
Project Deliverables

Objective 1:
• Determine efficacy of fungicidal and antimicrobial products (including recently identified antifungal formulations) in limiting SSR. (Year 1 completed, continued in year 2-3)
• Clearly define the effect climatic conditions on predicting fungicide application. (Year 1 completed, continued in year 2-3)
• Develop ROI estimates for fungicides tested in this objective. (Year 3)
Objective 2:
• Identify soybean NADPH oxidases and determine their expression levels in response to S. sclerotiorum (Completed in year 1)
• Determine that soybean NADPH oxidases are suitable targets to confer resistance to SSR (Year 2-3).
• Generate transgenic plants silenced in specific NADPH oxidases and evaluate their performance against a range of biotic and abiotic stresses (Year 3).
• Results of this research objective will be summarized in a manuscript that will be submitted for publication in a relevant peer-reviewed scientific journal, and shared with stakeholders through extension activities (Year 3).
Objective 3:
• Identifying S. sclerotiorum outbreaks with decreased fungicide sensitivity (a minimum of 10 isolates in ten field locations per state will be analyzed each year). (Testing initiated in year 1 and will continue in year 2-3)
• Whole genome sequencing will be performed on isolates exhibiting genomic change (as indicated by SSR / AFLP analysis conducted in year 1) and those with induced resistance. Results of SSR/AFLP analysis will be submitted for publication. (Year 2)
Objective 4:
• Develop return on investment (ROI) estimates for sclerotinia stem rot management strategies (Year 1-3)
• Annual educational videos, and extension reports related to sclerotinia stem rot and its management in the North Central region will be developed. (Year 1-3)
• A feature article will be generated using the most current information as a result of this coordinated effort. (Year 3)

Final Project Results

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.